Apex seal assembly
CA 1060801 A · Owner: Outboard Marine Corporation · Inventors: Betts, Edmund D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The improved apex seal assembly for a rotary piston of multi-corner profile having a plurality of contiguous peripheral surfaces intersecting at apex portions comprises a seal blade means receivable in a radial slot in each apex portion and an intermediate seal pin means for each apex portion and disposed in and rotatable relative to a bore communicating with the slot. The intermediate seal pin means is so formed as to have a sealing edge portion. A spring is located to exert a force on the intermediate seal pin means offset from its longitudinal axis so as to urge the intermediate seal pin means to rotate in a direction to maintain the sealing edge portion thereof into engagement against …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted August 21, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 21, 1996.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.